feat(imx8ulp): add memory region policy

set the memory region policy for secure heap(0xA9600000 ~ 0xAF600000),
it can only be RWX by secure master. At the same time, restrict G2D
and DCnano(domain 3) to write non-secure memory when they are set as
secure master.

Signed-off-by: Ji Luo <ji.luo@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: If53e130eaeb1ac867ee56e4af04e3be29dec9857
1 file changed